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An equilateral triangle has a side 2 cm. Calculate the height of the triangle.

Mathematics
WAEC 2023

An equilateral triangle has a side 2 cm. Calculate the height of the triangle.

  • A. 5cm
  • B. \(\sqrt5\)cm
  • C. 3cm
  • D. \(\sqrt{ 3}\)cm
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Correct Answer: Option D
Explanation

using Pythagoras theorem

H = \(\sqrt{ 2^2 - 1^2}\)

   =  \(\sqrt{ 4 - 1}\)

   =  \(\sqrt3\)cm

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